Improvement in harvesters



fia-f Pd 2621 ied jug #al/655.

.gtu @a UNITED STATES PATENT OFFICE.

FISK RUSSELL, OF B'OSTON, MASSACHUSETTS.

IM PROVEM ENT IN HA RVESTERS.

Speeifieation forming part of Letters Patent No. 13,438, dated August 14, 1855.

To all whom z't may concern.-

Be it known that 1', FrsK RUssELL, of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Grass-Harvesters; and Ido hereby declare that the same is fully described and represented in' thefollowing specification and the aecompanying drawings, letters7 figures, and references thereof.

In said drawings, Figure 1 represents a top view of that portion of niy machine to which my improvement rela-tes. Fig.2 is a side elevation taken on that side on which the cutterbar is situated. Fig. 3 is a side view ot' the inclined lever G when taken out of the machine and the rocker frame turned one-fourth round.

The driving-shaft E (denoted in Fig. l) carries a pinion, D, which plays into the internal gear of the driving-wheel. This driving-shaft extends across the frame and is supported in boxes, as seen at c c c, and carries a camwhe'el, F. Said cam-Wheel is so formed as to impa-rt a reciprocating vibratory movement to an inclined lever, G, Which works on a fulcrum at H. The lower end of said lever passes into a mortise in an iron rod, which is made to work the knives, While the upper end of said lever carries a bifurcated rocker-frame, I, lthat is made to turn in the end of the lever, and embraces the serpentine edge ofl the cam-wheel. and supports two friction-rollers, d e, placed on opposite sides of and againstthe cam-Wheel.

By means of the rocker-frame the cam-Wheel is enabled to operate the lever to much better advantage and With less noise and friction than Would be thecase were the lever applied to the cam-Wheel by a stationary fork or its equivalent. Besides this, another advantage results from the peculiar application or use of a rockerframe viz., that it aocommodates itself to the course of the cam-wheel, so as to prevent iinproper lateral strain on the lever.

What I claim, and Wish to secure by Letters Patent, is

S0 arranging the rocker-frame I that it may rotate in the end of .the lever G While said rocker-frame is operated upon by the serpeutine cam-wheel, Which it embraces, essentially as specified.

In testimony whereof I have hereunto subscrihed my name.

FISK RUSSELL.

fitnessesz F. G. FoN'rAINE,

l. I-IANNAY. 

